Journal
CARBOHYDRATE POLYMERS
Volume 247, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2020.116711
Keywords
Chitosan; Polycaprolactone; Halloysite nanotube; Nanofibrous mats; Sustained release; Food packaging
Categories
Funding
- National Natural Science Foundation of China [31772013]
- Zhejiang Provincial Natural Science Foundation of China for Distinguished Young Scholars [LR20C200001]
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The aim of this study was to develop chitosan (CS)/polycaprolactone (PCL) electrospun nanofibers with chlorogenic acid (CGA) loaded halloysite nanotubes (HNTs) as a carrier for CGA to provide a long-term sustained release. Results showed that the addition of CGA@HNTs at the concentrations of 2-6 wt% resulted in continuous nanofibers with an average diameter range of 159-166 nm, with improved thermal stability caused by the formation of hydrogen bonds. The incorporation of CGA@HNTs induced a hydrophilic surface and enhanced water vapor barrier property, but impaired the mechanical properties. However, the 2%, 4%, and 6% CGA@HNTs incorporated fibrous mats exhibited an initial release of 18.3 %, 26.2 %, 33.1 % within 15 h, and 34.7 %, 41.4 %, 51.3 % release after 240 h, respectively, indicating a long-term sustained release with enhanced anti-oxidant and antimicrobial activities. These results suggested the promising applications of the prepared CGA@HNTs/PCL/CS electrospun fibrous mats for active food packaging.
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